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❮ Docker Install Tomcat Docker Command Manual ❯

Docker Repository Management

A repository (Repository) is a centralized place for storing images. Let's introduce Docker Hub. Of course, there are other remote service providers, but the operations are the same.

Docker Hub

Currently, Docker maintains a public repository, Docker Hub.

Most requirements can be met by directly downloading images from Docker Hub.

Registration

Register for a free Docker account at https://hub.docker.com.

Login and Logout

Login requires your username and password. After successful login, you can pull all images under your account from Docker Hub.

$ docker login

Logout

To logout from Docker Hub, use the following command:

$ docker logout

You can search for images in the official repository using the docker search command and download them to your local machine using the docker pull command.

Search with the keyword "ubuntu":

$ docker search ubuntu

Download the official Ubuntu image to your local machine:

$ docker pull ubuntu

Push Image

After logging in, you can push your own image to Docker Hub using the docker push command.

Replace username with your Docker account username in the following commands.

$ docker tag ubuntu:18.04 username/ubuntu:18.04
$ docker image ls

REPOSITORY      TAG        IMAGE ID            CREATED           ...  
ubuntu          18.04      275d79972a86        6 days ago        ...  
username/ubuntu 18.04      275d79972a86        6 days ago        ...  
$ docker push username/ubuntu:18.04
$ docker search username/ubuntu

NAME             DESCRIPTION       STARS         OFFICIAL    AUTOMATED
username/ubuntu
❮ Docker Install Tomcat Docker Command Manual ❯